Feed mechanism.



R. L. WILCOX.

FEED MECHANISM.

APPLICATION FILED APR. 6, 1914.

2 SHEETS-SHEET 1.

THE NORRIS PETERS C0,. PHD70-LITHO. WASHINGTON. D C.

Patented Apr. 13, 1915.

R. L. WILCOX.

FEED MECHANISM.

APPLICATION FILED APR. 6. 1914.

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A CGPUPGR-A'IJIGN OF CONNECTIUUT,

FEED IIIECHANISIYI.

Application filed April 6, 1814.

1 0 all whom it may concern Be it known that I, RICHARD Lnsrnn WIL- oox, a citizen of the United States, residing at l i aterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Feed lvl'echanisms, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to a new and improved .eed mechanism, having particular reference to that type oi teed devices associated with heading machines and used for the purpose of intermittently feeding a wire rod to theupsettii'ig dies. lVhile it is particularly adapted for this purpose, and is illustrated ierein as connected with a heading mechanism, its availability is not limited thereto, because it may be used with various types of machines requiring a feed device.

it is the object of this invention, among other things, to provide a feed mechanism wherein both of the rolls are capable of adjustment in relation to the line of wire feed irrespective oi their diameter, especially with feed mechanism wherein the axes of the feeding rolls are horizontal.

To these, and other ends, my invention consists in the feed mechanism, having certain details of construction and combinations oi parts, as will be hereinafter described and more particularly pointed out in the claims.

Referring to the drawings, in which like numerals or" reference designate like parts in the several figures; Figure 1 is a side elevation of my improved mechanism; Fig. 2 is a plan view thereof; Fig. 3 is a front elevation, partly in section; and 4c is a sectional view of the parts, taken upon line A"? of Fig. 3.

in the drawings, the numeral 1 designates the bed of a header, or a part of any other type oi machine with which my improved feed mechanism may be attached, in which the line of wire feed, which is always in substantially the same positionin relation to the said header, etc, is illustrated by the broken lines CC. I

The feed mechanism itself comprises a bracket 2, within which is mounted the shaft 3, having a feed roll l at one end and a gear 5 adjacent to the other end, upon which is a friction brake 6. Pivotally secured within Specification of Letters Patent.

Patented Apr. 13, 119115.,

Serial No. 829,749.

said bracket, upon the stud 7, is the roll frame 8, having the shaft 9 rotatabl mounted therein, toone'endoit which is fixed a feed roll 10 corresponding in shape and six with the feed roll 4, and having a gear 11 secured to the opposite end thereof, the teeth of which .nesh into those of the gear 5. The bracket 2 is secured in place to the bed 1. b the bolts 13 and 14;, which pass through elongat d slots 15 in said bracket and are threaded into the bed 1.

Fixed to the bed 1 is a guide strip 16, which projects into a slot in the rear of the bracket 2 so as to insure the positive vertical movement of said bracket in relation to said bed, said strip being formed with a lug 17 at its bottom end, through which is threaded a screw 18, having a lock nut 19 thereon, which screw abuts against a button 20 fixed in the bottom of said bracket. The wire is guided between the rolls 4 and 10 by a quill 21, having an opening therethrough, the axis of which is coincident with the feed line CC of the machine. This quill isv secured to the bracket 2 by a plate 22 that is fixed thereto by the bolts 13 and 14-,which pass therethrough, a screw 23 in said plate holding the quill against movement therein. As the rolls 4: and 10 wear they can be resized and reshaped and used over again, the dilterence in diameters occasioned by such resizing being accommodated by moving the bracket 2 upwardly through the screw 18 until the periphery of the lower roll is again brought to the feed line CC, while the roll 10 is always held in contact with the lower roll by the action of the spring 24, which rests on the top of the roll frame 8, its tension being varied by a screw 25 in the yoke 26, which bears against the washer 27 resting on the top of said sprin A rod 28 projecting through the head of the screw 25 provides ready means for rotating said screw, and a lock nut 29, having an arm 30, holds the screw against premature rotation.

It has heretofore been possible to grind only one of the rolls, the upper roll, be cause if the diameter of the lower roll is reduced, the periphery thereof will not touch the line of the wire feed, its proper position for a successful feed operation With my improved mechanism, however, both rolls maybe resized an endless num- I ber of times, and the lower roll will always be in the line of the wire feed by a proper relative adjustment of the bracket upon the bed. i

Intermittent rotary movement is imparted to the roll shafts 3 and 9 through the "link31, having an endwise movement, and

a pawl carrierf32 rotatably mounted upon the shaft carrying a pawl 33 that enrially varied, and'I therefore desire to have it understood that I do not limit'myself to scribed. 20'

the exact construction hereinvshown and de- I'Iaving described my invention, what I claim as new and desire to secure by Letters Patent, isi r 7 r 1. Inia feed mechanism, the combination with amachine body having a substantially fixed lin e of wirefeed'; ofa bracketymea'ns. for adjustably securing said bracket to said Copies of this patent maybe obtained for machine body; a shaft journaled in said bracket; a roll frame pivotally connected with said bracket; a shaft journaled in said 1011 frame; a feed roll for each of said shafts; [and means for applying an adjustable, yielding pressure to the free end of said roll frame. 2, In a feed mechanism, the combination with a machine body having a substantially fixed line of wire feed; of a bracket connected with said machine body;'companion feed rolls, one above the other, rotatably connected with said bracket; means for adjusting the relative position of said bracket whereby the lower of said rolls is moved toward and away from said line of Wire feed; and means connected with said bracket for maintaining the upper of said rolls in contact with the lower roll in any of its adjusted positions.

In testimony whereof I afiix my signature in presence of two Witnesses.

RICHARD LESTER VVILCOX.

-Witnesses: GEO. T. BYAM, C. O. PETITJEAN;

five cents each, by addressing'the Commissioner of Patents Washington, D. C. 

